True
If a doctor is not notified, the chronic injury/condition could worsen
They're can be a possibility that you need to replace that contact
Not the way it looks here.
But if there's a plus or a minus sign, or even a fraction bar, in that space before the '5', then it sure is.
For Building Muscle, Getting “Toned,” And Improving How Your Body Looks… Resting 1-3 minutes between sets is probably ideal for you. The higher your training intensity is for a given exercise and/or the more demanding it is on your body, the more you should stay nearer to the 2-3 minute range.